Nodding Saxifrage - Saxifraga cernua
(see State Rank Reason below)
MNPS Threat Rank
State Rank Reason (see State Rank above)
Numerous collections from Granite, Missoula, Madison, Beaverhead, Glacier, Park, Deer Lodge counties. Not particularly rare.
Probably currently secure in its high elevation habitats.
Short-lived, fibrous-rooted perennial. Stems erect, 4–20 cm, glabrous to glandular. Leaves basal and cauline, petiolate; the blades reniform, 5–15 mm wide with 3 to 7 shallow lobes, glabrous, with rice-like bulblets in basal axils and small purple bulblets in the cauline axils. Inflorescence a glandular raceme or panicle with all but the terminal flower replaced by purple bulblets. Flower: calyx cup-shaped with lobes 1–2 mm long; hypanthium ca. 1 mm long; petals white, 5–8 mm long, oblanceolate; ovary inferior. Capsule rarely maturing (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX)
Differs from Saxifraga debile in having bulblets in the cauline leaf axils. In this character, it resembles Saxifraga ferruginea, but that species tends to have several, not one, flower and small flower parts.
Circumpolar south to WA, NV, NM and SD (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).
Observations in Montana Natural Heritage Program Database
Number of Observations:
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(Observations spanning multiple months or years are excluded from time charts)
Moist or wet, gravelly, sparsely-vegetated soil of wet cliffs, turf, boulder fields; upper subalpine, alpine (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX)
- Additional ReferencesLegend: View Online Publication
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- Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.